PRINCE HARRY made a secret promise to her grand-mother, Her Majesty the Queen, that completely changed his life, a bombshell documentary has revealed.

The Duke of Sussex developed a reputation in his youth for being rebellious and rejecting Royal traditions. The second son of Prince Charles and the late Princess Diana was seen as a party-loving teenager who disliked media attention. In 2012, Prince Harry was pictured stark naked but for a wristwatch and a necklace at a "high rollers hotel suite" in Vegas during a game of strip billiards.